While the initial impressions of Rebellion's Atomfall saw the title referred to as "British Fallout," preview coverage and hands-on experience have revealed that description not to be as accurate as initially thought. Instead, Atomfall is an action survival game built around the idea of investigation. That core pillar of its gameplay has allowed the title to take an atypical approach to quests, progression, and exploration that set it apart from similar titles. To support these investigations, Rebellion has developed a Leads system, which ultimately paves the way for the player to become a sort of post-apocalyptic detective who must carefully manage their allegiances and who they trust.